why iptables giving error when using with --src-range

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http://stackoverflow.com – I am using iptables v 1.4.8 and used following command but getting one error message on terminal # iptables -A INPUT -m iprange --src-range -j DROP modprobe: module 'ip_tables' not found Then after this when i am using iptables-save then also seeing the same error. also when using iptables -L same error is comming to terminal with the result of iptables -L , I am thinking using the --range option giving me this error as I tried other command but not having this error. But it is working fine but why this error is coming to terminal I can figure out. Kindly (HowTos)